# US 12,214,828 B2 · Electric vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,828 B2 - Document ID: US12214828B2 - Status: Granted - Kind: B2 - Application number: 17/779,031 - Filed: 2020-12-03 - Published: 2023-03-09 - Granted: 2025-02-04 - Earliest claimed: 2019-12-13 - Applicants: Mcmurtry Automotive Limited - Inventors: Thomas Yates - Web page: https://patentgrep.com/patent/US12214828B2 ## CPC - B62D 31/003: {compact cars, e.g. city cars} - B62D 63/02: Motor vehicles - B60K 1/04: of the electric storage means for propulsion - B60K 2001/0422: {Arrangement under the front seats} - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Disclosed is an electric vehicle having four wheels and a body having a cockpit defined therein, the cockpit containing a single seat and being closable to form an enclosure around the seat. The body has a front bumper having a width that is greater than a front track width of the vehicle. A width of the vehicle is between 1200 mm and 1600 mm, and a height of a centre of mass of the vehicle above a ground surface on which the vehicle is disposed is less than a third of the width of the vehicle. The electric vehicle may be suited for use in urban environments, and may provide benefits in terms of improved safety and maneuverability. ## Claims ### Claim 1 An electric vehicle comprising: four wheels; a body supported by said four wheels, said body having a cockpit defined therein, the cockpit having a single seat, the cockpit being closable so as to form an enclosure around the single seat, said body having a front bumper with a width greater than a front track width of the electric vehicle, wherein a width of the electric vehicle is between 1200 mm and 1600 mm, wherein a height of a center of mass of the electric vehicle above a ground surface on which the electric vehicle is disposed is less than a third of the width of the electric vehicle, wherein a height of an H-point of the electric vehicle above the ground surface on which the electric vehicle is disposed is less than 300 mm. ### Claim 2 (depends on 1) The electric vehicle of claim 1, further comprising: a motor; and at least one battery connected to said motor so as to supply power to said motor, wherein said at least one battery is disposed in the electric vehicle such that no part of said at least one battery is underneath the single seat. ### Claim 3 (depends on 1) The electric vehicle of claim 1, wherein a height of the electric vehicle is less than 1400 mm. ### Claim 4 (depends on 3) The electric vehicle of claim 3, wherein the height of the electric vehicle is less than 1250 mm. ### Claim 5 (depends on 1) The electric vehicle of claim 1, wherein a ground clearance of the electric vehicle is greater than 50 mm and less than 150 mm. ### Claim 6 (depends on 1) The electric vehicle of claim 1, wherein the single seat has a back extending at an angle relative to a vertical direction that is greater than five degrees and less than forty-five degrees. ### Claim 7 (depends on 1) The electric vehicle of claim 1, further comprising: a door that accesses the cockpit, said door forming at least a portion of a roof of the electric vehicle. ### Claim 8 (depends on 1) The electric vehicle of claim 1, further comprising: a windscreen affixed to said body, said windscreen extending an angle relative to the ground surface on which the electric vehicle is disposed is less than forty-five degrees. ### Claim 9 (depends on 1) The electric vehicle of claim 1, wherein the electric vehicle has a frontal area of less than 1.5 m2. ### Claim 10 (depends on 1) The electric vehicle of claim 1, wherein the front bumper has a maximum height above the ground surface on which the electric vehicle is disposed of less than 600 mm. ### Claim 11 (depends on 1) The electric vehicle of claim 1, wherein four wheels each has a tire thereon, the tire having a width greater than 10% of the width of the electric vehicle. ### Claim 12 (depends on 1) The electric vehicle of claim 1, wherein the single seat has a width that intersects a central axis of the electric vehicle. ### Claim 13 (depends on 1) The electric vehicle of claim 1, further comprising: a side impact structure disposed on at least one side of the cockpit, said side impact structure having a thickness of at least 250 mm. ### Claim 14 (depends on 1) The electric vehicle of claim 1, wherein the electric vehicle has a length of less than 4000 mm. ### Claim 15 (depends on 14) The electric vehicle of claim 14, wherein the length of the electric vehicle is less than 3500 mm. ### Claim 16 (depends on 1) The electric vehicle of claim 1, further comprising: an accelerator pedal positioned in the electric vehicle; and a regenerative braking system cooperative with said accelerator pedal so as to perform regenerative braking when a force is removed from said accelerator pedal. ### Claim 17 (depends on 1) The electric vehicle of claim 1, further comprising: an electrical drive system positioned in the electric vehicle, said four wheels being driven by said electrical drive system. ### Claim 18 (depends on 17) The electric vehicle of claim 17, wherein said electrical drive system is configured to enable torque vectoring, wherein a torque applied to at least one wheel of said four wheels on a left-hand side of the electric vehicle is different that a torque applied to another at least one wheel of said four wheels on a right-hand side of the electric vehicle. ### Claim 19 (depends on 1) The electric vehicle of claim 1, wherein a rollover threshold of the electric vehicle is T=SSF×g, wherein SSF=(W/2×H), in which W is the front track width of the electric vehicle, and H is the height of the center of mass of the electric vehicle above the ground surface on which the electric vehicle is disposed. ### Claim 20 (depends on 1) The electric vehicle of claim 1, wherein the electric vehicle has a rollover threshold of at least 1.5 g of lateral acceleration. ### Claim 21 (depends on 20) The electric vehicle of claim 20, wherein the rollover threshold T of the electric vehicle is given by T=SSF×g, where SSF=W/(2×H), W is a track width of the electric vehicle, and H is the height of the center of mass of the electric vehicle above the ground surface.